Haemophilus influenzae is a bacterium that causes severe invasive infections such as pneumonia, otitis media, acute epiglottitis and meningitis. It may be present in nasopharynx or healthy adults and transmitted to vulnerable persons via respiratory droplet or contact of contaminated surfaces. 90% of invasive Hib disease affect children under the age of 5 years. Getting vaccinated is an effective way to prevent Hib disease.

Hib vaccine is incorporated into national vaccination scheme in various countries/ regions. To date, it is however not yet included in “Hong Kong Childhood Immunization Programme” by Department of Health. Hib vaccine is included in 5-in-1 or 6-in-1 combined vaccines. It is also available as standalone vaccine. Children can get vaccinated in private clinics.